CSEC Chemistry · May/June 2005 · Paper 2 · Question 1(a)(i)

A student investigates the effect of temperature on the rate of reaction between aqueous sodium thiosulphate and hydrochloric acid, which produces sulfur, sulfur dioxide, sodium chloride, and water. The rate is monitored by measuring the time for a fixed amount of sulfur precipitate to form. Figure 1 shows stopwatch times and corresponding thermometer readings for experiments where reactant concentrations are constant.

In the space below, construct a suitable table and record on it, the temperatures at which the reaction took place with the corresponding times in seconds for the formation of sulphur.

This question uses a figure or table from the paper — you'll see it when you practise.